Closes #15740: Fix typos and deprecated List in docs (#15741)

* Fix typos in migration-v4.md

* Replace typing.List with list

typing.List is deprecated since Python 3.9

* Also replace typing.List with list in graphql-api.md

docs/plugins/development/graphql-api.md

@@ -8,7 +8,6 @@ A plugin can extend NetBox's GraphQL API by registering its own schema class. By
 
 ```python
 # graphql.py
-from typing import List
 import strawberry
 import strawberry_django
 
@@ -28,7 +27,7 @@ class MyQuery:
     @strawberry.field
     def dummymodel(self, id: int) -> DummyModelType:
         return None
-    dummymodel_list: List[DummyModelType] = strawberry_django.field()
+    dummymodel_list: list[DummyModelType] = strawberry_django.field()
 
 
 schema = [

docs/plugins/development/migration-v4.md

@@ -85,7 +85,7 @@ from django import forms
 class MyForm(forms.Form):
 ```
 
-### Update Fieldset Definitions
+### Update Fieldset definitions
 
 NetBox v4.0 introduces [several new classes](./forms.md#form-rendering) for advanced form rendering, including FieldSet. Fieldset definitions on forms should use this new class instead of a tuple or list.
 
@@ -252,7 +252,7 @@ class SiteSerializer(NetBoxModelSerializer):
 
 ### Include description fields in brief mode
 
-NetBox now includes the `description` the field in "brief" mode for all models which have one. This is not required for plugins, but you may opt to do the same for consistency.
+NetBox now includes the `description` field in "brief" mode for all models which have one. This is not required for plugins, but you may opt to do the same for consistency.
 
 ## GraphQL
 
@@ -260,7 +260,7 @@ NetBox has replaced [Graphene-Django](https://github.com/graphql-python/graphene
 
 ### Change schema.py
 
-Strawberry uses [python typing](https://docs.python.org/3/library/typing.html) and generally only requires a small refactoring of the schema definition to update:
+Strawberry uses [Python typing](https://docs.python.org/3/library/typing.html) and generally only requires a small refactoring of the schema definition to update:
 
 ```python title="Old"
 import graphene
@@ -276,8 +276,6 @@ class CircuitsQuery(graphene.ObjectType):
 ```
 
 ```python title="New"
-from typing import List
-
 import strawberry
 import strawberry_django
 
@@ -286,7 +284,7 @@ class CircuitsQuery:
     @strawberry.field
     def circuit(self, id: int) -> CircuitType:
         return models.Circuit.objects.get(pk=id)
-    circuit_list: List[CircuitType] = strawberry_django.field()
+    circuit_list: list[CircuitType] = strawberry_django.field()
 ```
 
 ### Change types.py
@@ -307,7 +305,7 @@ class CircuitType(NetBoxObjectType, ContactsMixin):
 ```
 
 ```python title="New"
-from typing import Annotated, List
+from typing import Annotated
 
 import strawberry
 import strawberry_django
@@ -321,7 +319,7 @@ class CircuitTypeType(OrganizationalObjectType):
     color: str
 
     @strawberry_django.field
-    def circuits(self) -> List[Annotated["CircuitType", strawberry.lazy('circuits.graphql.types')]]:
+    def circuits(self) -> list[Annotated["CircuitType", strawberry.lazy('circuits.graphql.types')]]:
         return self.circuits.all()
 ```